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2answers
43 views

why is a service neutral grounded but not the subpanel-neutral?

I know it's code (refer to NEC 250.24(A)5 and 250.32), but I don't understand why you can't use a bonding jumper to connect the ground bus and neutral bus in the subpanel? I've been told it's because ...
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0answers
59 views

Increasing the size of a sub panel

I am considering solar and the easiest place to connect the system for grid-tie is into a subpanel. With the 2013 CEC, this is permitted. However, I have a slight problem. I don't have any free ...
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0answers
75 views

Subpanel - still getting power with breaker disconnected

I'm in the middle of a garage/apt project and ran into an issue yesterday. Here's my layout. I have a 200Amp service meter with two 100 amp breakers just after the meter....one breaker feeding the ...
1
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0answers
57 views

Is this main box outdated and needs upgrade?

This house is 1970's built (UK) but not sure when the electrical wiring were done. The main box looks like in the attached picture. It seems it has only fuse boxes in it... and does not have any MCB, ...
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0answers
48 views

Circuit Location Detection

We recently got a nearly double electrical bill during the previous cycle. I, wrongly, assumed it was just a fluke and my family had left some things on longer than they were supposed to. This ...
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0answers
148 views

Unsure about wiring in electrical box

My circuit box door says that Dryer and outside outlets are connected on breaker 13 and 14, uppon opening the box and retracing wires I found that Dryer wires are just dangling inside the box not ...
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0answers
188 views

What should I do about multiple feeds on the same light switch?

I have a bank of 6 light switches all single pole that have 3 separate feeds going to them. 2 of the 3 feeds are tied together and are connected to 3 of the switches, requiring that I shut off 2 ...
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0answers
21 views

Any electrical power turn on while the kwh metre been reading could give you high electric consumption?

Day before Last saturday in the morning, I went to the electric watt metre and i did reading it, but then by tomorrow power supply personel went there and did the actual reading of current while most ...
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0answers
30 views

Power at breaker box but not in attic?

I have 120V on wire at breaker box. Traced same wire in attic and have no power at junction box. Replaced breaker still no power. What else can it be? Also at another junction box in attic there are ...
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0answers
18 views

Adding Outside lights

I want to use a switched fused socket 5amp that already supplies an outside security light to add 4 new outside lights 60 watt bulbs. The feed come from my heating circuit ,immersion heater a couple ...
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0answers
45 views

cable requirements for 100 amp sub panel in attached structure

specifics: Main Panel: 200 Amps desired sub panel: 100 Amps applications: running a welder / 220 air compressor / table saw / vacuum / vehicle lift. structure: Large shop - attached. Cable will ...
0
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0answers
80 views

How to ground old style Romex (no ground) multi-wire circult

I have a multi-wire that is very old and doesn't have a ground. I'd like to change this to using new Romex so that AFCI breakers will work. My question is this... Can I band the red wire in my ...
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0answers
42 views

How can I switch an electrical circuit from one dwelling unit to another?

I recently purchased a 2 family home and decided to live in the 2nd floor unit. My new tenants on first floor are concerned because the basement and front entrance electrical are hooked up to the 1st ...
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0answers
56 views

Why is my short circuit miniature circuit breaker not tripping?

I have two three-phase consumer units in a bakery. One is the latest Wylex that's recently been installed. It serves ovens and fridges etc. The other one is an old installation Crabtree with brown ...
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0answers
115 views

Terrarium electric board

[hope this isn't off topic for this board] I'm doing a DIY electric board for my terrarium: in case something goes wrong at least the whole electric circuit won't switch off. My current setup is a ...